Rework symbol visibility for easier maintenance

  Save in a few special cases, _X_EXPORT should not be used in C source
files. Instead, it should be used in headers, and the proper C source
include that header. Some special cases are symbols that need to be
shared between modules, but not expected to be used by external drivers,
and symbols that are accessible via LoaderSymbol/dlopen.

  This patch also adds conditionally some new sdk header files, depending
on extensions enabled. These files were added to match pattern for
other extensions/modules, that is, have the headers "deciding" symbol
visibility in the sdk. These headers are:
o Xext/panoramiXsrv.h, Xext/panoramiX.h
o fbpict.h (unconditionally)
o vidmodeproc.h
o mioverlay.h (unconditionally, used only by xaa)
o xfixes.h (unconditionally, symbols required by dri2)

  LoaderSymbol and similar functions now don't have different prototypes,
in loaderProcs.h and xf86Module.h, so that both headers can be included,
without the need of defining IN_LOADER.

  xf86NewInputDevice() device prototype readded to xf86Xinput.h, but
not exported (and with a comment about it).

1 files changed, 19 insertions, 19 deletions

diff --git a/hw/xfree86/i2c/xf86i2c.h b/hw/xfree86/i2c/xf86i2c.h
index a3413c9c4..f2ded09db 100644
--- a/hw/xfree86/i2c/xf86i2c.h
+++ b/hw/xfree86/i2c/xf86i2c.h
@@ -50,14 +50,14 @@ typedef struct _I2CBusRec {
 } I2CBusRec;
 
 #define CreateI2CBusRec		xf86CreateI2CBusRec
-extern I2CBusPtr xf86CreateI2CBusRec(void);
+extern _X_EXPORT I2CBusPtr xf86CreateI2CBusRec(void);
 #define DestroyI2CBusRec	xf86DestroyI2CBusRec
-extern void xf86DestroyI2CBusRec(I2CBusPtr pI2CBus, Bool unalloc, Bool devs_too);
+extern _X_EXPORT void xf86DestroyI2CBusRec(I2CBusPtr pI2CBus, Bool unalloc, Bool devs_too);
 #define I2CBusInit		xf86I2CBusInit
-extern Bool xf86I2CBusInit(I2CBusPtr pI2CBus);
+extern _X_EXPORT Bool xf86I2CBusInit(I2CBusPtr pI2CBus);
 
-I2CBusPtr 	xf86I2CFindBus(int scrnIndex, char *name);
-int		xf86I2CGetScreenBuses(int scrnIndex, I2CBusPtr **pppI2CBus);
+extern _X_EXPORT I2CBusPtr xf86I2CFindBus(int scrnIndex, char *name);
+extern _X_EXPORT int xf86I2CGetScreenBuses(int scrnIndex, I2CBusPtr **pppI2CBus);
 
 
 /* I2C slave devices */
@@ -77,30 +77,30 @@ typedef struct _I2CDevRec {
 } I2CDevRec;
 
 #define CreateI2CDevRec		xf86CreateI2CDevRec
-extern I2CDevPtr xf86CreateI2CDevRec(void);
-void      	xf86DestroyI2CDevRec(I2CDevPtr pI2CDev, Bool unalloc);
+extern _X_EXPORT I2CDevPtr xf86CreateI2CDevRec(void);
+extern _X_EXPORT void xf86DestroyI2CDevRec(I2CDevPtr pI2CDev, Bool unalloc);
 #define I2CDevInit		xf86I2CDevInit
-extern Bool	xf86I2CDevInit(I2CDevPtr pI2CDev);
-I2CDevPtr 	xf86I2CFindDev(I2CBusPtr, I2CSlaveAddr);
+extern _X_EXPORT Bool xf86I2CDevInit(I2CDevPtr pI2CDev);
+extern _X_EXPORT I2CDevPtr xf86I2CFindDev(I2CBusPtr, I2CSlaveAddr);
 
 /* See descriptions of these functions in xf86i2c.c */
 
 #define I2CProbeAddress		xf86I2CProbeAddress
-extern Bool	xf86I2CProbeAddress(I2CBusPtr pI2CBus, I2CSlaveAddr);
+extern _X_EXPORT Bool xf86I2CProbeAddress(I2CBusPtr pI2CBus, I2CSlaveAddr);
 
 #define		I2C_WriteRead xf86I2CWriteRead
-extern Bool	xf86I2CWriteRead(I2CDevPtr d, I2CByte *WriteBuffer, int nWrite,
+extern _X_EXPORT Bool xf86I2CWriteRead(I2CDevPtr d, I2CByte *WriteBuffer, int nWrite,
 		                   I2CByte *ReadBuffer,  int nRead);
 #define 	xf86I2CRead(d, rb, nr) xf86I2CWriteRead(d, NULL, 0, rb, nr)
 
-Bool 		xf86I2CReadStatus(I2CDevPtr d, I2CByte *pbyte);
-Bool 		xf86I2CReadByte(I2CDevPtr d, I2CByte subaddr, I2CByte *pbyte);
-Bool 		xf86I2CReadBytes(I2CDevPtr d, I2CByte subaddr, I2CByte *pbyte, int n);
-Bool 		xf86I2CReadWord(I2CDevPtr d, I2CByte subaddr, unsigned short *pword);
+extern _X_EXPORT Bool xf86I2CReadStatus(I2CDevPtr d, I2CByte *pbyte);
+extern _X_EXPORT Bool xf86I2CReadByte(I2CDevPtr d, I2CByte subaddr, I2CByte *pbyte);
+extern _X_EXPORT Bool xf86I2CReadBytes(I2CDevPtr d, I2CByte subaddr, I2CByte *pbyte, int n);
+extern _X_EXPORT Bool xf86I2CReadWord(I2CDevPtr d, I2CByte subaddr, unsigned short *pword);
 #define 	xf86I2CWrite(d, wb, nw) xf86I2CWriteRead(d, wb, nw, NULL, 0)
-Bool 		xf86I2CWriteByte(I2CDevPtr d, I2CByte subaddr, I2CByte byte);
-Bool 		xf86I2CWriteBytes(I2CDevPtr d, I2CByte subaddr, I2CByte *WriteBuffer, int nWrite);
-Bool 		xf86I2CWriteWord(I2CDevPtr d, I2CByte subaddr, unsigned short word);
-Bool 		xf86I2CWriteVec(I2CDevPtr d, I2CByte *vec, int nValues);
+extern _X_EXPORT Bool xf86I2CWriteByte(I2CDevPtr d, I2CByte subaddr, I2CByte byte);
+extern _X_EXPORT Bool xf86I2CWriteBytes(I2CDevPtr d, I2CByte subaddr, I2CByte *WriteBuffer, int nWrite);
+extern _X_EXPORT Bool xf86I2CWriteWord(I2CDevPtr d, I2CByte subaddr, unsigned short word);
+extern _X_EXPORT Bool xf86I2CWriteVec(I2CDevPtr d, I2CByte *vec, int nValues);
 
 #endif /*_XF86I2C_H */